La politica cambia spesso.

In Italian, general abstract nouns often take the definite article. So la politica can mean politics in a general sense.

This is different from English, where we usually say politics without the. Italian often sounds more natural with the article in cases like this:

• la musica = music
• la vita = life
• la politica = politics / policy

It can mean either, depending on context.

In La politica cambia spesso, the most natural translation is usually Politics changes often or Politics often changes in a broad sense.

But politica can also mean policy, especially in expressions like:

• la politica estera = foreign policy
• la politica economica = economic policy

So the exact meaning depends on the situation.

Because la politica is grammatically singular.

Even though English politics looks plural, the Italian noun politica is singular feminine:

• la politica cambia = politics changes

So the verb must agree with la politica, not with the English idea of politics.

Cambia is the third person singular present tense of cambiare (to change).

Present tense of cambiare:

• io cambio = I change
• tu cambi = you change
• lui/lei cambia = he/she/it changes

Here, la politica is the subject, so we use cambia.

Spesso means often.

It is an adverb, and in Italian adverbs like this often come after the verb:

• cambia spesso = changes often

That word order is very natural in Italian. You may also hear different placement for emphasis, but La politica cambia spesso is the standard, neutral order.

Yes, sometimes. For example:

• La politica spesso cambia
• Spesso la politica cambia

These are possible, but they may sound a little more marked or stylistically different. The most neutral version is:

• La politica cambia spesso

For a learner, that is the safest and most natural word order to use.

Italian usually does not need subject pronouns because the verb ending already shows the person and number.

So instead of saying:

• Essa cambia spesso

Italian normally just says:

• Cambia spesso

And since the subject is already expressed as la politica, there is even less reason to add a pronoun.

Here it is used intransitively, meaning to change on its own:

• La politica cambia spesso = Politics changes often

But cambiare can also be transitive:

• La politica cambia le regole = Politics changes the rules

So cambiare can work both ways depending on whether it has a direct object.

A simple English-friendly guide is:

lah poh-LEE-tee-kah KAHM-byah SPESS-oh

A few notes:

• politica has stress on li: po-LI-ti-ca
• cambia sounds roughly like KAHM-byah
• spesso has a clear double ss, so it is more crisp than English speso

It is neutral and works in both formal and informal contexts.

There is nothing especially casual or especially formal about it. It is just a straightforward statement:

• La politica cambia spesso.

You could use it in conversation, writing, or discussion without any problem.